Many EVO owners (including myself) are experiencing the issue detailed below, when I called HTC, they claimed to know nothing of it, yet a cursory search of the internet revealed hundreds of users experiencing this issue. Sprint also denied knowledge of it. Both my wife and I are having this problem and we both have HTC EVO's that were purchased the 1st or 2nd week after launch.
This issue is this: When headphones or AUX cables are plugged into the 3.5mm jack, and an attempt is made to listen to music, the music starts jumping all over the place, fast forwarding, skipping to another song, launching and DIALING voice dial!!...etc. This does not happen when the phone is laying still on a desk, but if you attempt to go for a jog (which is when many people listen to music) it goes awry. Or if you try to listen to it in the car with an AUX cable, it happens too. The problem has been isolated to a faulty jack, when the cable or plug moves ever so slightly (in the car, jogging, exercising) the connection to the jack shorts and causes a malfunction.
Some users report that using a microphone/headset instead of standard headphones prevents this problem, if this is the case, Sprint or HTC should issue microphone headsets to all EVO owners as any other headphones will not work, I've tried many brands, Sony, KOSS, generic, Sennheiser, panasonic, all have same problem.
Sprint, HTC, somebody, please correct this issue! I have an order in for an exchange for another EVO, but I'm skeptical that it will fix the issue.
Sprint: will this be fixed?
Reference to the Android Forums and another thread in this forum, there are many many others, but for the sake of brevity, I'll only cite 3:
Message was edited by: robertlo99
Just some FACTUAL clarification on this. If you are using HEADPHONES you are not using the right tool.
Not to be a stickler on this, but if you put a headset in a headphone jack you are going to have issues, doing it in reverse isn't going to fix it.
You were not sold an MP3 player. You were sold a phone. And for the record, you were not mislead.
This clearly states: "3.5 mm headset jack"
Notice the word is headSET not headPHONE.
Before you say that the headphone stats it's also known as a headset, read further and see that it specifically states that in telecommunications a headset is a headphone and microphone combination.
Again, unless you are using a HEADSET you are probably going to experience unexpected issues.
Message was edited by: suiris
Suirus: I don't think anyone here needs to be educated about the difference between headphones and headsets, most individuals savvy enough to purchase this phone probably know the difference, Let's not detract from the issue here.
I spoke to an HTC rep in their HW repair department and she stated that this is NOT supposed to happen, and that you ARE supposed to be able to listen to music played on this phone using headphones as well as an 3.5mm connector to your car's AUX port... which is also a standard TRS plug. Please stop trying to derail this discussion and take away the merit of the persisting problem.
Your intentions may be good, but please, it is not helping to address the admitted defect by the manufacturer HTC, they admitted that there's a defect as described, they just haven't admitted to it being a wide-spread problem, which is what I'm trying to bring to the fore-front of this discussion.
Message was edited by: robertlo99
Exactly. Not to mention the fact that some people do not have this issue. I myself tested it with my brother's Evo and he does not have the same problems I have. I am not able to tune in to ANY FM station and wiggling the jack results in skips, pauses, voice command prompts. His is 100% perfect.
I beg to differ since there is so much confusion over this.
Purchasers got EXACTLY what was advertised. This isn't an external antenna that kills reception when you touch it. It says headset and it means headset.
The phone is using a TRRS jack and most headphones are TRS plugs.
Please note this image.
Notice the difference in the plugs. A TS plug is for mono playback, TRS is used for stereo and TRRS is stereo + mic.
Also note that this is the standard config of TRRS plugs:
# Tip = Left Audio
# Ring 1 = Right Audio
# Ring 2 = Ground
# Sleeve = Microphone.
In contrast a TRS plug would be:
# Tip = Left Audio
# Ring = Right Audio
# Sleeve = Ground
Compare this to the image. Given that the mic is located on the sleeve in TRRS it is impossible to connect a TRS without the mic coming in contact with the ground. So, when you connect your headphones with a TRS plug your mic is grounding out.
Given that this phone supports media controls from the headset you can probably expect errant signals down any channel to cause the phone to respond to them.
Note that there are even products available to convert TRRS to TRS. The one below even designating the EVO and the one below that being a generic of sorts.
Some people are acheiving results by pulling the connecter out of socket slightly and this works because it is positioning the contact pin for the microphone between the rings in the insulator space and therefore preventing good connection for "feedback" on the ground.
Getting HTC to say it's a problem doesn't indeed make it a problem. It sounds to me that someone at HTC doesn't know what they are talking about.
This is NOT a defect. It is not limited to the Evo. If I plug analog HD cables into RCA jacks for video, I don't expect to watch any form of tv signal because the technologies aren't compatible even though the plugs fit.
Message was edited by: suiris
I think we all understand what you're saying. My point is that some people are not having this issue and some are with the exact same headphones. This leads us all to believe it can work with headphones and it's a manufacturing defect on a batch of phones. I haven't found anyone that has tested a headset yet on-line. All my headsets are miniUSB from my Touch Pro. Like I said before. My brother's Evo worked perfectly with any headphones I tried. Mine, however, exhibited all the issues.
Ok, this is a bit of an apology as well as some new information.
While I stand behind my technical briefing there, I have discovered a few things since I got home from work.
I have 2 Evo's. Mine and the one I bought my girlfriend for her birthday so I was able to test on TWO phones.
I had issues on both phones with headphones and the adapter for my car.
Here's something I found in self discovery.
Apparently the Evo has a sensor to detect when there is a TRRS inserted as opposed to a TRS. This will put the phone either into "headphone" mode or into "headset" mode marked by a small icon that looks either like headphones or a headset on the top. one shows a mic and one does not.
The connectivity was CRAP... but here's what I did. The plugs felt seated properly. Something was amiss... I decided to push the plug harder into the jack and with some force I heard a pop and the jacks seated in further... and EUREKA! Working perfectly.
If you have not tried this, please try.
Yes, that's one of the first things I tried since I saw someone else on another forum with that fix, no-go.
No apology needed, I don't think anyone was disputing or dis-crediting your technical argument there, but I think the people that are having the problems agree that it doesn't matter, this phone should accept headphones AND headsets.
Otherwise, why does the phone have the sensor for headphones, right?
Both of my Evo's work just fine now with TRS plugs in the jack and I get great sound and FM reception... Well as good as the reception is in my area which isn't all that great. I have an actual wired headset around here somewhere... If I can find it and try it, I will report.
I had the same problem...As of July 1st system update IT IS FIXED! I used the Evo in the car both to work and back and not one hickup. They must have figured out that almost no-one was going to use 4 conducter headphones and the circuitry needed to change. I was angry initially, but knew it would be fixed. Why did I know? The same exact problem happened on my Hero. Android 2.1 download fixed that too. For the Evo I called Sprint customer service the first day I had the phone about the headphone problem. They took the info down and said they would send it up the ladder to the techs. MAKE SURE YOU DOWNLOAD YOUR UPDATE ASAP. You will be a happy camper!
Thanks for the info. You saved me the time I would have spent taking my phone in to have it checked. Pulling the headset slightly out worked fine. Now my phone at least recognizes there is a headset hooked up. Now I just need to go find the right type of headset. Thanks